{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T00:26:56.383","vulnerabilities":[{"cve":{"id":"CVE-2023-54274","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-12-30T13:16:16.327","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/srpt: Add a check for valid 'mad_agent' pointer\n\nWhen unregistering MAD agent, srpt module has a non-null check\nfor 'mad_agent' pointer before invoking ib_unregister_mad_agent().\nThis check can pass if 'mad_agent' variable holds an error value.\nThe 'mad_agent' can have an error value for a short window when\nsrpt_add_one() and srpt_remove_one() is executed simultaneously.\n\nIn srpt module, added a valid pointer check for 'sport->mad_agent'\nbefore unregistering MAD agent.\n\nThis issue can hit when RoCE driver unregisters ib_device\n\nStack Trace:\n------------\nBUG: kernel NULL pointer dereference, address: 000000000000004d\nPGD 145003067 P4D 145003067 PUD 2324fe067 PMD 0\nOops: 0002 [#1] PREEMPT SMP NOPTI\nCPU: 10 PID: 4459 Comm: kworker/u80:0 Kdump: loaded Tainted: P\nHardware name: Dell Inc. PowerEdge R640/06NR82, BIOS 2.5.4 01/13/2020\nWorkqueue: bnxt_re bnxt_re_task [bnxt_re]\nRIP: 0010:_raw_spin_lock_irqsave+0x19/0x40\nCall Trace:\n  ib_unregister_mad_agent+0x46/0x2f0 [ib_core]\n  IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready\n  ? __schedule+0x20b/0x560\n  srpt_unregister_mad_agent+0x93/0xd0 [ib_srpt]\n  srpt_remove_one+0x20/0x150 [ib_srpt]\n  remove_client_context+0x88/0xd0 [ib_core]\n  bond0: (slave p2p1): link status definitely up, 100000 Mbps full duplex\n  disable_device+0x8a/0x160 [ib_core]\n  bond0: active interface up!\n  ? kernfs_name_hash+0x12/0x80\n (NULL device *): Bonding Info Received: rdev: 000000006c0b8247\n  __ib_unregister_device+0x42/0xb0 [ib_core]\n (NULL device *):         Master: mode: 4 num_slaves:2\n  ib_unregister_device+0x22/0x30 [ib_core]\n (NULL device *):         Slave: id: 105069936 name:p2p1 link:0 state:0\n  bnxt_re_stopqps_and_ib_uninit+0x83/0x90 [bnxt_re]\n  bnxt_re_alloc_lag+0x12e/0x4e0 [bnxt_re]"},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nRDMA/srpt: Añadir una comprobación para un puntero 'mad_agent' válido\n\nAl anular el registro del agente MAD, el módulo srpt tiene una comprobación de no nulidad para el puntero 'mad_agent' antes de invocar ib_unregister_mad_agent().\nEsta comprobación puede pasar si la variable 'mad_agent' contiene un valor de error.\nEl 'mad_agent' puede tener un valor de error durante una ventana corta cuando srpt_add_one() y srpt_remove_one() se ejecutan simultáneamente.\n\nEn el módulo srpt, se añadió una comprobación de puntero válido para 'sport->mad_agent' antes de anular el registro del agente MAD.\n\nEste problema puede ocurrir cuando el controlador RoCE anula el registro de ib_device\n\nTraza de la pila:\n------------\nBUG: desreferencia de puntero NULL del kernel, dirección: 000000000000004d\nPGD 145003067 P4D 145003067 PUD 2324fe067 PMD 0\nOops: 0002 [#1] PREEMPT SMP NOPTI\nCPU: 10 PID: 4459 Comm: kworker/u80:0 Kdump: loaded Tainted: P\nNombre del hardware: Dell Inc. PowerEdge R640/06NR82, BIOS 2.5.4 01/13/2020\nCola de trabajo: bnxt_re bnxt_re_task [bnxt_re]\nRIP: 0010:_raw_spin_lock_irqsave+0x19/0x40\nTraza de llamada:\n  ib_unregister_mad_agent+0x46/0x2f0 [ib_core]\n  IPv6: ADDRCONF(NETDEV_CHANGE): bond0: el enlace está listo\n  ? __schedule+0x20b/0x560\n  srpt_unregister_mad_agent+0x93/0xd0 [ib_srpt]\n  srpt_remove_one+0x20/0x150 [ib_srpt]\n  remove_client_context+0x88/0xd0 [ib_core]\n  bond0: (esclavo p2p1): estado del enlace definitivamente activo, 100000 Mbps full duplex\n  disable_device+0x8a/0x160 [ib_core]\n  bond0: ¡interfaz activa levantada!\n  ? kernfs_name_hash+0x12/0x80\n (dispositivo NULL *): Información de Bonding Recibida: rdev: 000000006c0b8247\n  __ib_unregister_device+0x42/0xb0 [ib_core]\n (dispositivo NULL *):         Maestro: modo: 4 num_slaves:2\n  ib_unregister_device+0x22/0x30 [ib_core]\n (dispositivo NULL *):         Esclavo: id: 105069936 nombre:p2p1 enlace:0 estado:0\n  bnxt_re_stopqps_and_ib_uninit+0x83/0x90 [bnxt_re]\n  bnxt_re_alloc_lag+0x12e/0x4e0 [bnxt_re]"}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/00cc21e32ea1b8ebbabf5d645da9378d986bf8ba","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4323aaedeba32076e652aad056afd7885bb96bb7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5f6ef2a574b0e0e0ea46ed0022575442df9d0bf9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8ec6acdb9b6a80eeb13e778dfedb5d72a88f14fe","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b713623bfef8cb1df9c769a3887fa10db63d1c54","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eca5cd9474cd26d62f9756f536e2e656d3f62f3a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}]}}]}